768426121 has 8 divisors (see below), whose sum is σ = 771409088. Its totient is φ = 765450000.

The previous prime is 768426119. The next prime is 768426167. The reversal of 768426121 is 121624867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(768426121) divides (768426121-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 768426121 - 2¹ = 768426119 is a prime.

It is the 27721-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768426521) by changing a digit.

It is a nontrivial repunit in base 27720.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340246 + ... + 342496.

It is an arithmetic number, because the mean of its divisors is an integer number (96426136).

Almost surely, 2^768426121 is an apocalyptic number.

It is an amenable number.

768426121 is a deficient number, since it is larger than the sum of its proper divisors (2982967).

768426121 is a wasteful number, since it uses less digits than its factorization.

768426121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423.

The product of its digits is 32256, while the sum is 37.

The square root of 768426121 is about 27720.5000135279. The cubic root of 768426121 is about 915.9407331365.

The spelling of 768426121 in words is "seven hundred sixty-eight million, four hundred twenty-six thousand, one hundred twenty-one".